Frame structure of baby carriage



FIG. 1 is a front view of a frame structure of baby carriage showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a perspective view thereof.

The broken line showing of the stroller frame is included for the purpose of illustrating environment and forms no part of the claimed design. 

The ornamental design for a frame structure of baby carriage, as shown and described. 